# CrazyStone DeepLearning — Enjoy Online and Offline Go

> AI-powered Go game with online play, certification tests, and rating modes. (iPhone/iPad app by Unbalance Corporation.)

- Source: https://appshunter.io/ios/app/crazystone-deeplearning/id1252539379 (this page in markdown: same URL + `.md`)
- Developer: [Unbalance Corporation](https://appshunter.io/developer/358617691)
- Category: Games, Board, Strategy
- Price: Free with in-app purchases
- Rating: 4.70/5 from 1,012 App Store ratings · 130 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 165 MB
- Languages: American English, Japanese
- Released: 2017-07-19
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/crazystone-deeplearning/id1252539379/reviews.md

## What is CrazyStone DeepLearning?

The strongest, the best Go app in the world based on Crazy Stone employing Deep Learning technology ! 

*New Features*
-We have introduced an online game feature. Enjoy online games against players all over the world !
-IAGA Rating Certification Tests          
Challenge the Dan/Kyu tests provided by the International AI Go Association.
-Premium Membership 
Completely ad free, higher levels and additional features for Premium Members.

Crazy Stone has made a huge step forward by combining Deep Neural Networks with Monte Carlo Tree Search. The highest level of Crazy Stone Deep Learning has achieved 5d in kgs rating and in this lite version, we have provided you the highest level of 2d for FREE!

* 17 levels of play from 15k to 2d
There are 17 levels of play (15k-2d) for all the board sizes.
Crazy Stone has improved not only in strength, but also in his style of play and the lower levels are perfect for players who want to learn the game of Go.
Now, the strongest level for Premium Members is 5d.  

* IAGA Rating Certification Test 
Challenge the Dan/Kyu tests provided by the International AI Go Association. You will be awarded certificate images if you pass the tests.
(You will need to register an AI Game Account to challenge the tests. Registration is free)　
 
* Export and import sgf game files
You will be able to import and export game records in sgf format from other apps. Also you can copy game record data to the clipboard.

* Rating Mode 
Test your skills with serious games against the AI, keeps track of the results of your games and the history of your rating!
The Rating Mode will be partly unlocked if you reach 7k IAGA Rating. If you become a premium member, all of the Rating Mode features will be unlocked immediately.

* Other features
・Friendly 3 input methods
You can choose from 3 options of input methods (Zoom, Cursor & Touch).
・17 levels of play for each board size (9x9, 13x13, 19x19)
・Human vs Computer, Human vs Human (sharing a single device) 
・Computer vs Computer Games                     
・Handicap games, variable options of Komi
・Hint (suggest)
・Instant Undo (available even when the computer is thinking)
・Automatic territory calculation
・Japanese/Chinese Rules 
・Suspend/Re-start games
・Save/Load game record in sgf files
・Automatic and manual replay of a game record 
・Highlight the last move
・COM resign feature
・Byoyomi games 
 (You will not be able to select computer level in timed games)
・Atari warning
・Highlight the last move
・Play speed can be adjusted 

■ Subscription Details
The benefits of Premium Members are:
-Completely ad free
-Maximum AI playing strength will rise to 5dan
-Play Rating Mode for all 3 board sizes
-Challenge the IAGA Certification Tests higher than 7kyu 

About the subscription
-Monthly Subscription for Premium Membership.
-Customers will be charged a monthly fee to their iTunes Account.
-The Subscription will be renewed automatically unless cancelled more than 24 hours before the end of it's current period.
-Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.

How to cancel the subscription
-Form the app
Touch the Manage Subscription button and then touch Cancel Subscription.
-From your device
Move to Settings > iTunes Store and App Store > Apple ID > Subscription
 
-It is not possible to prorate usage fees, cancel or refund the subscription for the current period.
-After cancelling the subscription, you will be able to play Engine Server Games until the current subscription period expires.

Privacy Policy  https://www.unbalance.co.jp/privacy/en/igominna/
Terms of Use  https://www.unbalance.co.jp/eula/en/igominna/

* This app is certified by International AI Go Association

## Key features

- Online Go games against global players
- IAGA Rating Certification Tests
- 17 levels of play from 15k to 2d
- Export/import SGF game files
- Rating Mode with game history
- Human vs Computer and Human vs Human modes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| CrazyStone DL Subscription | $2.99 | per month |


## What do users think of CrazyStone DeepLearning?

Overall sentiment: mixed

**Pros**

- 👍 Great for learning Go
- 🎮 Enjoyable gameplay
- 💪 Strong AI opponent
- 🎨 Good visual design

**Cons**

- 🙄 Excessive ads
- ⏱️ Extremely long ads
- 🤖 AI difficulty too high for beginners
- 🔒 Inability to close ads

**Commonly reported bugs**

- Issues with input method and stone placement
- Sound not working
- Saved game state causing issues with ads

**Most requested features**

- More advanced levels
- Ability to replay and explore game variations
- Option to slow down AI response
- Landscape mode support
- Analysis mode for premium users

## Recent user reviews (10 of 130)

All indexed reviews: https://appshunter.io/ios/app/crazystone-deeplearning/id1252539379/reviews.md

### 1/5 — Long ads ruin this app

*2026-08-14, version 3.2.0*

Now has 5 minutes of unskippable ads after every game. Used to not be this way. I’m uninstalling.

### 1/5 — Ads are uncloseable

*2026-05-11, version 3.1.9*

I played one game, and was unable to close out of the ad even after it was finished (which took several minutes). I deleted the app, reinstalled it, and the same thing happened. I deleted the app and reinstalled it again and subscribed before I played a game and now the app is actually usable. However, that setup feels scammy. I’m wondering if the Pro version of this app that hasn’t been updated in four years is worth getting for $16.99 instead

### 1/5 — Реклама задолбала

*2026-04-25*

Назойливая реклама.

### 1/5 — Terrible ads

*2026-03-01, version 3.1.9*

Literally just got 5 minutes of ads after a quick game

### 5/5 — I LOVE GO

*2026-02-21, version 3.1.9*

if you are a go liker i totally reccomend, it’s great for long drives because you can play against someone just like 2 player games (:

### 5/5 — 改善して欲しい

*2026-02-20, version 3.1.9*

他のゲームが毎回一手一手打つ度に入るため考えている時、集中できない

### 4/5 — 手軽に楽しめていいです

*2026-02-13, version 3.1.9*

あとは囲碁シルみたいなライトな検討機能があったら最高
課金者向けでいいから

### 2/5 — ヒント(笑)

*2026-02-06, version 3.1.9*

試しに9路盤で最初から最後までヒントの言う通りに打って見たら大ゴマ取られて負けました。全く勉強の役に立たないクソ機能です。★1にしようかと思いましたが、「待った」し放題なのは検討の役に立つので★2にしておきます。だいぶがっかりしました

### 5/5 — Can we have more advanced levels?

*2026-02-03, version 3.1.9*

I love it. But hopefully it’ll have more advanced levels soon.
Also I hope you shorten your commercials

### 1/5 — 広告がおおすぎ

*2026-01-04, version 3.1.8*

広告が多い上にいつまでも終わらないものがある 時間の無駄です。

## Frequently asked questions about CrazyStone DeepLearning

### What is CrazyStone DeepLearning?

CrazyStone DeepLearning is a mobile application for playing the ancient strategy game of Go. It utilizes advanced Deep Learning technology combined with Monte Carlo Tree Search to provide a strong AI opponent. The app offers online multiplayer, certification tests, and various game modes for players of all levels.

### What are the key features of this Go app?

Key features include playing online games against players worldwide, challenging IAGA Rating Certification Tests, 17 levels of play from beginner to advanced, exporting and importing game records in SGF format, and a Rating Mode to track your progress. It also supports multiple board sizes and input methods.

### How much does CrazyStone DeepLearning cost?

The app is free to download and offers a certain level of play for free. Premium Membership is available via a monthly subscription, which unlocks ad-free play, higher AI strength (up to 5dan), full access to Rating Mode, and higher-level IAGA Certification Tests. Some features may also be unlocked by reaching certain in-game ratings.

### What are the compatibility requirements for this app?

The provided description does not specify exact compatibility requirements such as minimum OS versions or device types. However, as a mobile application, it is designed to run on smartphones and tablets. Users can typically find compatibility details on the app's store page.

### Who is the target audience for this Go app?

This app is designed for anyone interested in playing the game of Go. This includes beginners who want to learn the game with adjustable AI difficulty, intermediate players looking to improve their skills, and advanced players seeking a strong AI opponent and opportunities to test their abilities through certification.

## Version history (last 5 releases)

### 3.2.0 — 2026-07-17

Minor performance improvements

### 3.1.9 — 2026-01-27

Minor performance improvements

### 3.1.8 — 2025-06-04

Minor performance improvements

### 3.1.7 — 2024-07-09

Fixed some minor issues.

### 3.1.6 — 2024-06-19

Minor improvements

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All apps by Unbalance Corporation: https://appshunter.io/developer/358617691

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[crazystone deeplearning](https://appshunter.io/ios/topics/crazystone-deeplearning) · [crazystone deeplearning pro](https://appshunter.io/ios/topics/crazystone-deeplearning-pro) · [learn deep learning offline](https://appshunter.io/ios/topics/learn-deep-learning-offline) · [tygem](https://appshunter.io/ios/topics/tygem)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*